Valve-actuating knob assembly



FIG. 1 is a perspective view of the valve-actuating knob assembly according to the invention;

FIG. 2 is a side elevational view of the knob assembly;

FIG. 3 is a top view of the knob assembly; and,

FIG. 4 is a bottom view of the knob assembly. 

The ornamental design for a valve-actuating knob assembly, as shown. 